Doctors are warning about the mysterious and dangerous problem of blood clotting among some coronavirus patients. CBS News senior medical correspondent Dr. Tara Narula explores the new symptom and a potential new treatment that can help. bloodClotsCoronavirusCOVID-19COVID19Deadlydoctorsimmune systemIMMUNITYPatientsPotentiallyvideoVITAMINvitamin covid19vlogwarnYouTubeRelated Posts COVID’s New Variant Is Spreading Faster Than Expected April 18, 2026 COVID’s New Variant Is Spreading Faster Than Expected April 16, 2026 These Aren’t Just Hormone Problems April 16, 2026 New COVID Variant ‘Cicada’ Spreading Across U.S. | Seniors at Highest Risk April 15, 2026 Persistent immune activation and MS explosion #diseaseprevention April 13, 2026 Cicada COVID Variant Spreading in U.S. | What Doctors Want You to Know Now April 12, 2026